I recently purchased a Fukien Tea bonsai from a store because I’ve always been very interested in them and wanted one. I know that buying a Mallsai is usually not the best idea but my tree seems fairly healthy
It's not only about health. This plant has very little to do with the art of bonsai. It is not much more than a shaped plant in a fancy pot, with fancy stones and decorative dead moss, all elements you will not find in real bonsai.
are any suggestions on pruning and shaping
This plant is already shaped and there's not much you can do but keep it in that shape by pruning branches that grow too long.
If you want to train this into a real bonsai, that's going to take drastic measures, knowledge, practice and patience.